#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (c) 2009, Kao Cardoso Félix
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
#   copyright notice, this list of conditions and the following
#   disclaimer in the documentation and/or other materials provided
#   with the distribution.
# * Neither the name of the python-game-tools nor the names of its
#   contributors may be used to endorse or promote products derived
#   from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

import pyglet
from util import image_files
from level import Node, ImageResource

class NodeSource(object):
    """A source for editor nodes. It's meant to be subclassed to
    provide the kind of node you want.
    """

    def __init__(self, paths):
        """
	"""
        self._current_tile_index = 0

        ## Resource path config and loading
        if paths:
            pyglet.resource.path.extend(paths)
            pyglet.resource.reindex()

        self.load_resources()

        ## Brush creation
        self.brush = pyglet.sprite.Sprite(self.current_tile.image)
        self.brush.opacity = 128

    def load_resources(self):
        """Load all image resources on the resource path.
        """
        self.imgs = []
        for path in pyglet.resource.path:
            for img_file in image_files(path):
                self.imgs.append(ImageResource(img_file))

        if not self.imgs:
            raise RuntimeError("No images to load!")

    @property
    def current_tile(self):
        return self.imgs[self._current_tile_index]

    def get_node(self):
        """
        """
        return Node(self.current_tile)

    def draw_brush(self, scale):
        """
        """
        self.brush.scale = scale
        self.brush.draw()

    def on_mouse_motion(self, x, y, dx, dy):
        self.brush.position = (x, y)

    def next_node(self):
        """
        """
        self._current_tile_index += 1
        if abs(self._current_tile_index) >= len(self.imgs):
            self._current_tile_index = 0

        self.brush.image = self.current_tile.image

    def previous_node(self):
        """
        """
        self._current_tile_index -= 1
        if abs(self._current_tile_index) >= len(self.imgs):
            self._current_tile_index = 0

        self.brush.image = self.current_tile.image




